What is the kinetic energy of a 60-kg diver falling at 10 ms?
The kinetic energy of the diver can be calculated using the formula: KE = 0.5 * mass * velocity^2. Plugging in the values for the mass (60 kg) and velocity (10 m/s), we get KE = 0.5 * 60 * 10^2 = 3000 J. Thus, the kinetic energy of the 60-kg diver falling at 10 m/s is 3000 Joules.
What is potential and kinetic energy made of?
Potential energy is stored energy that an object has due to its position or condition. Kinetic energy is the energy an object possesses due to its motion. Both forms of energy can be thought of as resulting from the interactions of particles and forces within an object.
Can a body have nonzero average speed but have zero average velocity give example?
Yes, a body can have a nonzero average speed but zero average velocity if it moves around a closed path and returns to its starting point. For example, if a car travels around a circular track at a constant speed, its average speed will be nonzero (as distance is covered), but its average velocity over the entire trip will be zero as the displacement is zero.
How do you measure kinetic energy?
To calculate the kinetic energy, multiply the mass times the velocity squared and divide by 2. (Mass in kilograms, speed in meters/sec, yields energy in joules.)
The equation is
KE= 1/2 (mv2)
Kinetic Energy= one-half (mass times velocity squared)
How can a trucks kinetic energy can be increased without increasing its speed?
Drive alongside it in another vehicle and then move stuff onto the truck. This will increase the mass of the [whole] truck and so increase its KE. This is dangerous so do not try it!
Mph stands for miles per hour, which is a measurement of speed.
What are the effects of potential energy and kinetic energy to 3 states of matter?
Kinetic energy effects changes of state because it is when energy that has been held up inside the object (aka potential energy), is finally released.
For example: On a roller coaster, the cart goes up a hill. At the top of the hill, right before it is about to go down another hill, it has potential energy, or stored up energy. Then whe it is going down the hill, all the energy is released and now the energy is in the form of kinetic.
Another example: A marble is attached onto the end of a string. You pull the marble back. While being held back, the marble has potential energy. When you let the marble go, that energy turns into potential energy, because it is in motion.
Defintions:
Potential energy: Energy that is stored up
Kinetic energy: Energy in motion
Does a baseball flying through the air have kinetic energy because its in motion?
The energy related to the movement is called "kinetic energy". Presumably, the moving baseball would be above ground level, so it would also have gravitational potential energy - assuming you choose to define the ground level as zero.
It depends on air pressure and temperature, or altitude. On a sea level it will be around 9120 mph, on 36000ft it will be 7900 mph.
What happens to an objects kinetic energy as its mass increases?
kinetic energy, K.E = 1/2 mv^2
that is, it is directly proportional to mass, assuming velocity to be constant
and is directly proportional to square of velocity assuming mass to be constant.
What type of energy is kinetic and potential?
Kinetic energy is the energy of motion, possessed by an object in motion. Potential energy is the energy that an object has due to its position or state, such as gravitational potential energy or elastic potential energy.
Which is a characteristic of projectile motion?
One characteristic of projectile motion is that the object follows a curved path under the influence of gravity. This motion can be divided into horizontal and vertical components that are independent of each other. The object’s velocity changes due to the constant acceleration from gravity.
Which is the average kinetic energy of a particles in an object?
The average kinetic energy of particles in an object is directly related to the temperature of the object. As temperature increases, the average kinetic energy of the particles also increases. This is because temperature is a measure of the average kinetic energy of the particles in an object.
1 knot = 1 nautical mile per hour
1 nautical mile = 1,852 meters
1 statute mile = 1,609.344 meters
16 knots = 16 nautical miles per hour = 29,632 meters per hour = 18.41 mph (rounded)
How many mph is 280 kilometres per hour?
1 kilometre = 0.621371192 miles
280 kilometres = 173.98393376 miles
When can an object a constant speed but not a constant velocity?
If the velocity is constant there is no acceleration. Speed is not velocity, velocity has speed and direction. I A car going around a circular track at 60 mph keeps the same speed but changes direction and thus accelerates at a constant speed.
Velocity is speed in a certain direction.
So change the speed but keep direction the same and you change the velocity.
or
Change the direction while keeping the speed the same and you change the velocity.
If the speed is constant, any change of direction is a change in velocity. Driving around in a circle is a case of constantly changing direction.
What happens to a substance when you remove kinetic energy?
When you remove kinetic energy from a substance, its particles slow down. If enough kinetic energy is removed, the substance may transition from a gas to a liquid or a solid, depending on the substance.
How far can you travel at 45 mph?
Speed = distance/time
You have been given the speed and time. You need to find distance. In order to determine the distance, you must rearrange the equation for speed by multiplying both sides of the equation by time, isolating distance. Then plug in your known values and solve for distance.
Speed x time = distance
47mph x 1/2h = 23.5 mi
How many feet per second are in 90mph?
90 miles/hour (5280 feet/1 mile)(1 hour/3600 seconds)
= 132 feet per second
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